Exetasis Walker, 1852

Gillung, Jéssica Paula & Carvalho, Claudio José Barros De, 2009, Acroceridae (Diptera): a pictorial key and diagnosis of the Brazilian genera, Zootaxa 2175, pp. 29-41 : 37

publication ID

https://doi.org/ 10.5281/zenodo.189330

DOI

https://doi.org/10.5281/zenodo.6219285

persistent identifier

https://treatment.plazi.org/id/03E37C1E-134D-9778-49F6-56AD74E9FF1F

treatment provided by

Plazi

scientific name

Exetasis Walker, 1852
status

 

Exetasis Walker, 1852 View in CoL View at ENA

(Fig. 16)

Exetasis Walker, 1852: 202 View in CoL . Type species: Exetasis tumens Walker, 1852 View in CoL .

Diagnosis. Eyes black and pilose, holoptic bellow antennae. Antennae inserted on the upper part of the head; flagellum often flattened laterally, longer than the head. Mouthparts shorter than the antennae. Wing hyaline, with many or few microtrichia in the membrane; vein R4 absent (Fig. 16).

Comments. In the description of the genus, Walker (1852) only described the venation of the wing and no other characters. Exetasis has been considered a synonym of Ocnaea Erichson by some authors, but Schlinger (1968a) says that these two genera are similar but may be separated by the distribution of the microtrichia on the wing membrane and the absence of the vein R 4 in Exetasis . A species revision for both genera is probably necessary for better understanding of the units.

References. Schlinger (1968a, 1972).

Brazilian species. E. brasiliensis (Carrera, 1947) View in CoL [ Brazil, São Paulo, São Roque (type-locality)], E. calida ( Wiedemann, 1830) View in CoL [ Brazil], E. eickstedtae (Schlinger, 1972) View in CoL [ Brazil, Espírito Santo, Colatina (typelocality)], E. longicornis ( Erichson, 1840) View in CoL [ Brazil, Minas Gerais, São João del Rei (type-locality)], E. tumens ( Walker, 1852) View in CoL [ Brazil].

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Diptera

Family

Acroceridae

Loc

Exetasis Walker, 1852

Gillung, Jéssica Paula & Carvalho, Claudio José Barros De 2009
2009
Loc

Exetasis

Walker 1852: 202
1852
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